Angewandte Chemie International Edition · 1999 · 85 citations · 0 references
Natural SciencesChemistryMaterials ScienceCorrosion ScienceSurface ChemistrySurface ScienceCluster ChemistryCluster CompoundsCoordination ChemistryCorrosion InhibitorsCorrosion Of SteelsCorrosion-resistant MaterialsCluster FormationCorrosion InhibitionCorrosion Inhibition MechanismsCorrosion Inhibitor EffectsCorrosion Inhibitors For Mild SteelMolecular Metal ClustersSteel Surface TreatmentTetrahedral Coordination
A tetranuclear iron cluster is the principal component of the purple coatings produced by treating a mild steel surface with a salicylaldoxime corrosion inhibitor. This was shown by comparison of the spectroscopic data with those of the cluster [{Fe(salH)(HsalH)}4 ], which was obtained from FeCl3 and salicylaldoxime (H2 salH) and has a distorted tetrahedral arrangement of Fe(III) atoms coordinated by terminal (1-) and bridging (2-) salicylaldoximate ligands (the central core of the cluster is depicted).